Veloce GTS-8 momo 2016-05-14

my new skin momo. thanks to luathas for the files for car interior!
I like the skin but it's not how I want .. I had some problem and not managed to solve Can somebody help me? some photos of the problem:

with the camera near the car all good.

but looking from afar the car some black lines become blurred. someone knows why is this happening ?.

tested in one layer, to separate into two layers, put up, down. remaking again and again, always the same. finally delete the black edge of everything. I'm a noob with photoshop.. depressing.